It's content is pretty dry as all of these comes from author's own experience of working in Chinese giant e-commerce industry Taobao. It's his note of product management from a green bird to ex[erienced.
Though the word and sentences he used in this book is not fancy at all, like a chat with friend, I like his giving real project and solution details, and explaining in different angles.
It's suitable for someone who does not know product manager's work very well, or fresh pm who would like to get inspired.